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Quantum Communication, Computing, and Measurement pp 289–297Cite as

Physical Interpretation of Optimum Quantum Detection Operators

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Abstract

In this paper, it will be clarified why quantum detection theory may predict superior performance in comparison with semi-classical detection theory. The reason is based on the fact that in the quantum formulation the reduction of probabilities of the cross over regions among decision symbols is allowed by the quantum interference induced by quantum measurement processes. The superior performance for optimum and Kennedy’s receivers is explained by the compression of probability amplitude of signal state by the projectors. Furthermore we show the general realization theorem of the optimum projectors.

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Author information

Authors and Affiliations

  1. Research Center for Quantum Communications, Tamagawa University, Machida, Tokyo, Japan

    R. Momose & O. Hirota

  2. Communication Research Laboratory, Ministry of Posts and Telecommunications, Koganei, Tokyo, Japan

    M. Sasaki

Authors
  1. R. Momose
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  2. M. Sasaki
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  3. O. Hirota
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Editor information

Editors and Affiliations

  1. Tamagawa University, Machida, Tokyo, Japan

    O. Hirota

  2. Steklov Mathematical Institute, Moscow, Russia

    A. S. Holevo

  3. University of New Mexico, Albuquerque, New Mexico, USA

    C. M. Caves

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© 1997 Springer Science+Business Media New York

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Momose, R., Sasaki, M., Hirota, O. (1997). Physical Interpretation of Optimum Quantum Detection Operators. In: Hirota, O., Holevo, A.S., Caves, C.M. (eds) Quantum Communication, Computing, and Measurement. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-5923-8_31

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  • DOI: https://doi.org/10.1007/978-1-4615-5923-8_31

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4613-7716-0

  • Online ISBN: 978-1-4615-5923-8

  • eBook Packages: Springer Book Archive

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